Hi everyone!
I need a big help!
I need to receive from an arduino the data from 8 encoders, 3 buttons and 3 potentiometer.
I'm using the "comport" object. How can I have the single outputs of any single encoder/buttons/potentiometer?
I've tried to unpack the data with the names I give to the encoders on the arduino (en0, en1, en 2...), but without obtaining anything...
What can I do?

Please send help!!!!

You'll probably need to share the arduino code cause like this it's not easy to help you.
Note that strings like "en0" are not that trivial to parse in Pd. I've made an abstraction that does this which you can find here, it's called [serial_print]. Mind though that after each string that is used as a tag for a value you'll need to print a delimiter, which either a white space, a comma, or a horizontal tab ('\t'). Check its help patch and arduino sketch for details.
Come back here with code and patch if you can't figure it out.

Hi Alexandros!
Here you can find the Arduino code.
The whole thing have 3 buttons, 3 analog potentiometer and 3 encoders.
Each encoder should output his speed that I will send to a slider, the faster the encoder spin the higher the slider should be.
The buttons will be linked to a toggle.
And the analog potentiometer to some other sliders.
Thanks a lot for your help!

rolltoneMain.zip

try the attached code. In Pd receive values with [comport] and [serial_print] with [r event0], [r event1] etc. (actually I don't know the numbers these "events" can take), with [r bup], with [r scl:] and with [r en0], [r en1], etc.
Let me know if it works for you.
rolltoneMain.zip

@alexandros Could you explain me a bit better the whole chain from the [serial_print] object?
Could you send me an example patch?
I've attached the pure data project, the signal from each encoders should increase or decrease the value on the sliders associated.
Many thanks!

Rolltone S.pd

I can't check the patch right now, but if you copy [comport], [serial_print], and [s ] from [serial_print]'s help patch, and include the [r ] objects I mentioned in the previous post, you should probably start getting some values out of them.

Just checked your patch and changed it a bit. It might work with the Arduino sketch I posted above. Check it and let us know if it works.
rolltone-s.pd

Hi Alexandros!
Sorry for the late reply.
Your object works like a charm!
Thanks a lot! you really saved my life!
I'm just having some problems with the Arduino and the Encoders, instead of incrementing or decrementing the value, it output just numbers (sometimes 0-1 some other time 3-4 and all in between). it's strange then with both pins attached it output 0 with one attached it output 1 and with the other attached it output -1, in different ranges but keeping this proportion.
As soon I will fix that I will post all the results!

As always it was a cable problem. Some of the connection were in short and arduino was receiving 1 from both the channels of the encoder.

Glad you got it working!